chore(deps): bump django-environ from 0.12.1 to 0.13.0

Bumps [django-environ](https://github.com/joke2k/django-environ) from 0.12.1 to 0.13.0.
- [Release notes](https://github.com/joke2k/django-environ/releases)
- [Changelog](https://github.com/joke2k/django-environ/blob/main/CHANGELOG.rst)
- [Commits](joke2k/django-environ@v0.12.1...v0.13.0)

---
updated-dependencies:
- dependency-name: django-environ
  dependency-version: 0.13.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -8,7 +8,7 @@ django_celery_results==2.6.0
 django-auditlog==3.2.1
 django-pghistory==3.9.2
 django-dbbackup==5.2.0
-django-environ==0.12.1
+django-environ==0.13.0
 django-filter==25.2
 django-imagekit==6.0.0
 django-multiselectfield==1.0.1